THE 



DESCENT OE MAN, 



AND 



SELECTION IN RELATION TO SEX. 



BY 



CHARLES DARWIN, M. A., F. R. S., Etc. 



WITH ILLUSTRATIONS. 



IN TWO VOLUMES.— Vol. I. 



NEW YORK: 



D. APPLETON AND COMPANY, 



549 & 551 BROADWAY. 



1872. 



